Quiz submission record for quiz7-1-1 at Mon Aug  2 09:26:54 2004:

Your Answer for Question 1:
A virtual address is an address that corresponds to a location in virtual space and is translated by address mapping to a physical address when memory is addressed. A physical address is the corresponding address in main memory. A virtual address is like the title of a book, and the physical address would be the location of the book in the library. To go from a VA to a PA, the virtual page is looked up in the page table, and if the valid bit is on, the page table supplies the physical page number.

Your Answer for Question 2:
Because pages are allocated in fixed-size chunks, we do not need to find a contiguous block of memory for which to allocate to a program; instead, we only need to worry about finding the sufficient number of pages in main memory. What's good about larger pages is that it reduces the amount of misses by taking advantage of spatial locality. 


Your unique submission ID is quiz7-1-1-cs61c-ep-1091464014-2841.